It was a comeback for the ages, but Nick Kyrgios came agonisingly close to losing his cool altogether.
The Aussie described his five-set thriller against Ugo Humbert at the Australian Open as "one of the craziest matches I've ever played in" - and for good reason too.
The 5-7 6-4 3-6 7-6 (7-2) 6-4 back-and-fourth clash was box office entertainment, but Kygrios' running battle with chair umpire Marijana Veljovic also had the Melbourne crowd on the edge of their seats.
Throughout the match, 25-year-old Kyrgios was growing visibly frustrated with the automated net sensor that detects lets on serves.
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The technology was clearly faulty and resulted in the Aussie fan favourite losing out on valuable points when his aces were called as lets.
And in the second set, his frustrations were laid bare when the chair umpire called two back-to-back aces as lets when they clearly weren't.
"Just turn the machine off. Turn it off," Kyrgios told Veljovic.
"It happened to (Humbert's) serve, it was this far over the net. It is ruining the game, do you not understand that? You don't understand it.
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"Look at the score. How do you understand it? It happened in the first set and I told you to turn it off. Did you turn it off?
"I'm not playing until you turn it off. Turn it off, it's this far over the net."
And in the fifth and final set, Kyrgios thought 'enough is enough' and took matters into his own hands.
Lining up to serve, Kyrgios rifled the ball into the net which knocked the let sensor onto the court.
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You could argue that it was a complete fluke, but knowing just how fuming Kyrgios was, it's probably safe to say is was an intentional move.
Play was ultimately paused as Veljovic came down from her chair to fix the device and Kyrgios saw the opportunity to give her a piece of his mind.
"Look at the score, look at the score man," he said.
"It's ruining the game. It's ruining the game.
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"You don't understand it's f***ing one-all in the fifth set."
And if his feelings on the matter weren't clear enough during the game, he then doubled down during his post-match press conference.
"Having technology like that, you sound like an idiot trying to argue against it," Kyrgios said.
"But even when (Humbert) was serving, it was literally this far over the net and the net thing went off.
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"I was like there's no chance this was accurate.
"If you have a device where you can turn down the sensitivities, I just think there's too many variables.
"I don't know. I don't have the solution... maybe they need to upgrade their technology."
Kyrgios will now play world number three Dominic Thiem in the third round of the Australian Open.
And if he gets past the Austrian, it could set up a legendary grudge match with Kyrgios' long-time rival Novak Djokovic.
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